/* =====================================================================
   NekoNA Portfolio — style.css
   コンセプト: 和モダン / 桜 (Warm Editorial × Sakura)
   既存 DiscordWeb（NekoNA Circle）の世界観に統一:
     ・温かいダーク (#0B0A08) と生成り色のインク
     ・Noto Serif JP Light を基調にした静かなタイポ
     ・舞い散る桜の花びら / 上品なドットカーソル
     ・ネオン・HUD・回路風の演出は排し、手触りのある質感へ
   ===================================================================== */

/* ---------- デザイントークン ---------- */
:root{
  --bg:#0B0A08;
  --bg-2:#100E0B;
  --glass:rgba(10,8,6,0.62);
  --glass-2:rgba(10,8,6,0.46);
  --glass-3:rgba(10,8,6,0.34);

  --ink:#F0ECE4;
  --ink-2:#C8C2B8;
  --ink-3:#8A8278;

  --rule:rgba(240,236,228,0.12);
  --rule-2:rgba(240,236,228,0.22);

  --accent:#6E7BF0;        /* 主アクセント（ブルー / 青紫） */
  --accent-soft:#9AA6FF;
  --accent-deep:#4F5BD0;
  --sky:#5AA9FF;           /* 副アクセント（空色） */
  --petal:#E6A6BC;         /* 桜色（カーソル・舞い散る花びら専用） */

  --cat-video:#5AA9FF;
  --cat-design:#4ECCE6;
  --cat-elec:#9A8BFF;

  --maxw:1120px;
  --pad:clamp(20px,5vw,40px);
  --radius:14px;

  --glow-accent:0 0 0 1px rgba(110,123,240,0.32), 0 10px 30px rgba(0,0,0,0.4);

  --ease:cubic-bezier(0.22,1,0.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

html,body{
  background:var(--bg);
  color:var(--ink);
  font-family:'Noto Sans JP',system-ui,sans-serif;
  font-weight:400;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:clip; /* hidden だと position:sticky が壊れるため clip を使う */
}
/* body は透明に（背景は html が持つ）。これで負の z-index の背景レイヤーが隠れない */
body{min-height:100vh;position:relative;background:transparent}

.mono{font-family:'Noto Sans JP',system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:.04em}
.serif{font-family:'Noto Serif JP',serif;font-weight:500}

a{color:inherit}
img{max-width:100%;display:block}

::selection{background:rgba(110,123,240,0.34);color:#fff}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

/* ---------- 背景レイヤー ---------- */
.bg-base{
  position:fixed;inset:0;z-index:-4;
  background:
    radial-gradient(1100px 760px at 80% -12%, rgba(110,123,240,0.12), transparent 60%),
    radial-gradient(900px 660px at 4% 110%, rgba(78,204,230,0.07), transparent 60%),
    linear-gradient(180deg,#0D0B09 0%, #0B0A08 55%, #080705 100%);
}
.bg-glow{
  position:fixed;inset:0;z-index:-3;pointer-events:none;
  background:radial-gradient(560px 560px at var(--mx,50%) var(--my,28%), rgba(110,123,240,0.06), transparent 70%);
  transition:background-position .2s;
}
/* 紙のような微細グレイン（手触り） */
.bg-grain{
  position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:200px 200px;
}

/* ---------- ヒーロー背景メディア（全面・ぼかし・無音） ---------- */
.hero-bg{
  position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;background:#000;
  opacity:0;transition:opacity .8s var(--ease);
}
.hero-bg.is-active{opacity:1}
.hero-bg-media{
  position:absolute;inset:0;overflow:hidden;background:#000;
  filter:blur(26px) saturate(1.08) brightness(.62);
  transform:scale(1.08);
}
/* サムネ画像（常時表示。動画が再生できない環境でもこれが見える） */
.hero-bg-thumb{position:absolute;inset:0;background:#000 center/cover no-repeat}
/* 動画プレーヤー（実際に再生started したらフェードイン） */
.hero-bg-player{position:absolute;inset:0;opacity:0;transition:opacity 1s var(--ease)}
.hero-bg-player.is-playing{opacity:1}
.hero-bg-media iframe{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:100vw!important;height:56.25vw!important;
  min-width:177.78vh!important;min-height:100vh!important;
  border:0;pointer-events:none;
}
.hero-bg-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(7,8,11,.66) 0%, rgba(7,8,11,.34) 52%, rgba(7,8,11,.12) 100%),
    linear-gradient(180deg, rgba(7,8,11,.38) 0%, rgba(7,8,11,.30) 48%, rgba(7,8,11,.82) 100%);
}
/* スクロール量に応じて濃くなる暗幕（JSで opacity を制御） */
.hero-bg-dark{position:absolute;inset:0;background:#05060a;opacity:0;pointer-events:none}

/* ---------- ローディング ---------- */
.loader{
  position:fixed;inset:0;z-index:10000;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg,#0B0A08);
  transition:opacity .8s ease,visibility .8s ease;
}
.loader.done{opacity:0;visibility:hidden}
.loader-inner{display:flex;flex-direction:column;align-items:center;gap:20px}
.loader-mark{
  font-family:'Noto Serif JP',serif;font-weight:300;
  font-size:21px;letter-spacing:.42em;padding-left:.42em;
  color:var(--ink,#F0ECE4);opacity:.92;
}
.loader-bar{
  position:relative;width:118px;height:2px;border-radius:2px;
  background:rgba(240,236,228,.12);overflow:hidden;
}
.loader-bar i{
  position:absolute;top:0;left:-40%;height:100%;width:40%;
  background:linear-gradient(90deg,transparent,rgba(240,236,228,.72),transparent);
  animation:loaderSlide 1.15s ease-in-out infinite;
}
@keyframes loaderSlide{0%{left:-42%}100%{left:100%}}

/* ---------- 桜の花びら ---------- */
.petal{
  position:fixed;top:0;left:0;pointer-events:none;z-index:9998;
  border-radius:80% 0 80% 0;
  animation:petalFall var(--pdur,1200ms) linear forwards;
}
@keyframes petalFall{
  0%  {transform:translate(0,0) rotate(0deg) scale(1);opacity:.88}
  100%{transform:translate(var(--dx),var(--dy)) rotate(var(--dr)) scale(.28);opacity:0}
}

/* ---------- カスタムカーソル（上品なドット） ---------- */
/* カーソル（小さなドット。桜は追従する花びらのモーションで表現） */
#cursor{
  position:fixed;top:0;left:0;z-index:9999;pointer-events:none;
  width:10px;height:10px;margin:0;will-change:transform;
  border-radius:50%;
  background:rgba(255,255,255,0.85);
  box-shadow:0 0 6px rgba(255,255,255,0.5);
  mix-blend-mode:difference;
  display:none;opacity:0;
  transition:width .2s var(--ease), height .2s var(--ease), background .2s, opacity .25s, mix-blend-mode .2s;
}
body.has-cursor{cursor:none}
body.has-cursor a,body.has-cursor button{cursor:none}
#cursor.is-hover{
  width:26px;height:26px;
  background:rgba(154,166,255,0.5);
  mix-blend-mode:normal;
  box-shadow:0 0 16px rgba(154,166,255,0.5);
}

/* ---------- スクロール進捗レール ---------- */
.scroll-rail{
  position:fixed;top:14vh;right:18px;bottom:14vh;width:1px;z-index:40;
  background:linear-gradient(180deg, transparent, var(--rule-2) 12%, var(--rule-2) 88%, transparent);
}
.scroll-head{
  position:absolute;left:50%;top:0;width:6px;height:6px;margin-left:-3px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(110,123,240,0.7);
  transition:top .12s linear;
}
@media (max-width:900px){.scroll-rail{display:none}}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;left:50%;top:-60px;transform:translateX(-50%);z-index:10000;
  background:var(--accent);color:#1a1410;padding:8px 16px;border-radius:8px;font-size:13px;
  transition:top .2s;
}
.skip-link:focus{top:10px}

/* ---------- 共通: ラベル / 見出し ---------- */
.eyebrow{
  font-family:'Noto Sans JP',system-ui,sans-serif;
  font-size:10.5px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--ink-3);
}
.section-title{
  font-family:'Noto Serif JP',serif;font-weight:300;
  font-size:clamp(25px,4.2vw,38px);letter-spacing:.05em;line-height:1.4;
  color:var(--ink);margin-top:14px;
}
.section-title .swap{color:var(--accent);font-style:normal;padding:0 .14em}
.section-note{margin-top:14px;color:var(--ink-2);font-size:13.5px;letter-spacing:.03em;max-width:54ch;line-height:1.95}
.section-note .mono{color:var(--accent-soft);font-size:12px}

/* ---------- レイアウト ---------- */
.section{
  position:relative;z-index:1;
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(64px,11vw,120px) var(--pad);
}
.section-head{margin-bottom:clamp(34px,6vw,56px)}

/* ---------- トップバー ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:18px;
  padding:16px clamp(16px,4vw,36px);
  background:var(--glass);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:0.5px solid var(--rule);
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s,padding .3s var(--ease);
}
/* スクロールすると締まる（固定ヘッダーの質感） */
.topbar.is-scrolled{
  padding-top:11px;padding-bottom:11px;
  background:rgba(9,7,5,0.82);
  border-bottom-color:var(--rule-2);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none}
.brand-mark{
  width:12px;height:12px;flex-shrink:0;
  border-radius:4px;
  background:linear-gradient(135deg,var(--accent-soft),var(--accent));
  box-shadow:0 0 10px rgba(110,123,240,0.4);
}
.brand-name{font-family:'Noto Serif JP',serif;font-weight:400;letter-spacing:.16em;font-size:16px;color:var(--ink-2)}
.brand:hover .brand-name{color:var(--ink)}
.nav{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav a{
  font-size:12px;letter-spacing:.12em;color:var(--ink-2);text-decoration:none;
  padding:4px 2px;transition:color .2s;position:relative;
}
.nav a::after{
  content:'';position:absolute;left:0;right:100%;bottom:-2px;height:1px;
  background:var(--accent);transition:right .25s var(--ease);
}
.nav a:hover,.nav a.is-current{color:var(--ink)}
.nav a:hover::after,.nav a.is-current::after{right:0}
.vr{width:0.5px;height:13px;background:var(--rule-2)}
.nav-social{display:flex;align-items:center;gap:14px}
.nav-social a{color:var(--ink-3);transition:color .2s,transform .2s;line-height:0}
.nav-social a:hover{color:var(--accent);transform:translateY(-1px)}
.nav-social svg{width:17px;height:17px}
.nav-toggle{display:none}

/* ---------- ヒーロー ---------- */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-start;
  max-width:var(--maxw);margin:0 auto;
  padding:clamp(120px,19vh,200px) var(--pad) clamp(80px,12vh,120px);overflow:hidden;
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.hero-title{
  font-family:'Noto Serif JP',serif;font-weight:300;
  font-size:clamp(28px,5.6vw,54px);line-height:1.5;letter-spacing:.05em;
  margin:22px 0 20px;color:var(--ink);
  text-shadow:0 2px 24px rgba(0,0,0,.5);
}
.hero-name{color:var(--ink-2);font-size:clamp(13px,2.2vw,15px);letter-spacing:.07em;margin-bottom:18px}
.hero-name .serif{color:var(--ink);font-weight:500;letter-spacing:.08em}
.hero-name .sep{color:var(--ink-3);margin:0 .5em}
.hero-sub{color:var(--ink-2);font-size:clamp(13.5px,2.3vw,15.5px);line-height:2.1;max-width:540px}

.hero-status{
  margin-top:30px;
  font-family:'Noto Serif JP',serif;font-weight:300;
  font-size:14px;letter-spacing:.08em;color:var(--ink-2);
  display:inline-flex;align-items:center;gap:11px;
}
.hero-status::before{
  content:'';width:8px;height:8px;border-radius:70% 0 70% 0;transform:rotate(8deg);
  background:var(--accent);box-shadow:0 0 8px rgba(110,123,240,0.6);
}

.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:10px;font-size:13px;letter-spacing:.1em;
  text-decoration:none;border:0.5px solid transparent;transition:all .25s var(--ease);
}
.btn-primary{
  background:rgba(110,123,240,0.14);color:var(--ink);
  border-color:rgba(110,123,240,0.5);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.btn-primary:hover{background:rgba(110,123,240,0.24);border-color:rgba(110,123,240,0.8);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.35)}
.btn-ghost{background:rgba(240,236,228,.03);color:var(--ink-2);border-color:var(--rule-2)}
.btn-ghost:hover{border-color:var(--accent);color:var(--ink);transform:translateY(-2px)}

/* ---------- About / Duo ---------- */
.about-lead{
  font-family:'Noto Serif JP',serif;font-weight:300;
  font-size:clamp(17px,3vw,24px);line-height:2;letter-spacing:.05em;color:var(--ink);
  max-width:30ch;margin-bottom:48px;
}
.about-lead em{font-style:normal;color:var(--accent-soft)}

.duo{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:clamp(16px,3vw,32px)}
.duo-card{
  background:var(--glass-2);border:0.5px solid var(--rule);border-radius:var(--radius);
  padding:clamp(22px,3vw,32px);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .3s,transform .3s,box-shadow .3s;
}
.duo-card:hover{border-color:var(--rule-2);transform:translateY(-4px);box-shadow:0 18px 50px rgba(0,0,0,.4)}
.duo-no{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;letter-spacing:.18em;color:var(--accent);margin-bottom:14px}
.duo-title{font-family:'Noto Serif JP',serif;font-weight:400;font-size:22px;letter-spacing:.08em;margin-bottom:10px}
.duo-desc{color:var(--ink-2);font-size:13.5px;line-height:2;margin-bottom:18px}
.chip-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.chip-list li{font-size:11.5px;letter-spacing:.06em;color:var(--ink-2);padding:4px 11px;border:0.5px solid var(--rule);border-radius:999px;background:rgba(240,236,228,.02)}
.duo-link{display:flex;align-items:center;justify-content:center;min-width:36px}
.duo-node{position:relative;width:11px;height:11px;border-radius:70% 0 70% 0;transform:rotate(8deg);background:var(--accent);box-shadow:0 0 12px rgba(110,123,240,.7)}
.duo-node::before,.duo-node::after{content:'';position:absolute;top:50%;width:22px;height:0.5px;background:linear-gradient(90deg,var(--accent),transparent)}
.duo-node::before{right:100%;background:linear-gradient(270deg,var(--accent),transparent)}
.duo-node::after{left:100%}

/* ---------- Tabs ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.tab{
  font-family:inherit;font-size:12.5px;letter-spacing:.08em;color:var(--ink-2);
  padding:9px 18px;border:0.5px solid var(--rule);border-radius:999px;background:var(--glass-3);
  cursor:pointer;transition:all .22s var(--ease);
}
.tab:hover{color:var(--ink);border-color:var(--rule-2)}
.tab.is-active{color:#1a1410;border-color:transparent;background:linear-gradient(120deg,var(--accent-soft),var(--accent))}

/* ---------- Works grid ---------- */
.works-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:clamp(14px,2vw,22px);
}
.work-card{
  position:relative;display:flex;flex-direction:column;
  border:0.5px solid var(--rule);border-radius:var(--radius);overflow:hidden;
  background:var(--glass-2);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:border-color .3s,transform .3s,box-shadow .3s,opacity .3s;
  text-decoration:none;color:inherit;
}
.work-card.is-hidden{display:none}
.work-card:hover{transform:translateY(-5px);border-color:var(--rule-2);box-shadow:0 22px 56px rgba(0,0,0,.45)}
.work-card.cat-video:hover{box-shadow:0 22px 56px rgba(0,0,0,.45),0 0 0 1px rgba(90,169,255,.4)}
.work-card.cat-illust:hover{box-shadow:0 22px 56px rgba(0,0,0,.45),0 0 0 1px rgba(78,204,230,.4)}
.work-card.cat-cg:hover{box-shadow:0 22px 56px rgba(0,0,0,.45),0 0 0 1px rgba(126,140,240,.4)}
.work-card.cat-electronics:hover{box-shadow:0 22px 56px rgba(0,0,0,.45),0 0 0 1px rgba(154,139,255,.4)}
.work-card.cat-music:hover{box-shadow:0 22px 56px rgba(0,0,0,.45),0 0 0 1px rgba(91,200,192,.4)}

.work-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.work-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease),filter .4s;filter:saturate(.9)}
.work-card:hover .work-thumb img{transform:scale(1.05);filter:saturate(1.02)}

/* プレースホルダ（制作中）ビジュアル */
.work-thumb.placeholder{display:grid;place-items:center;background:
  radial-gradient(120% 120% at 30% 10%, rgba(240,236,228,.04), transparent 60%),
  var(--bg-2);}
.ph-motif{width:64px;height:64px;opacity:.5}
.ph-grid{position:absolute;inset:0;background:
  radial-gradient(120% 90% at 50% 28%, rgba(110,123,240,.07), transparent 72%),
  radial-gradient(90% 80% at 80% 100%, rgba(78,204,230,.05), transparent 70%)}

.work-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10px;letter-spacing:.1em;
  padding:4px 9px;border-radius:6px;color:#1a1410;font-weight:700;
}
.work-wip{
  position:absolute;top:12px;right:12px;z-index:2;
  font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;letter-spacing:.14em;
  padding:4px 9px;border-radius:6px;color:var(--accent-soft);
  border:0.5px solid rgba(110,123,240,.4);background:rgba(110,123,240,.08);
}
.work-play{
  position:absolute;inset:0;display:grid;place-items:center;z-index:2;pointer-events:none;
}
.work-play span{
  width:50px;height:50px;border-radius:50%;display:grid;place-items:center;
  background:rgba(11,10,8,.5);border:0.5px solid rgba(240,236,228,.3);color:var(--ink);font-size:14px;
  backdrop-filter:blur(4px);transition:transform .25s,background .25s;
}
.work-card:hover .work-play span{transform:scale(1.08);background:rgba(110,123,240,.5)}

.work-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.work-title{font-family:'Noto Serif JP',serif;font-weight:400;font-size:16px;letter-spacing:.04em;line-height:1.55}
.work-title-en{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;letter-spacing:.08em;color:var(--ink-3)}
.work-desc{color:var(--ink-2);font-size:12.5px;line-height:1.85;flex:1}
.work-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.work-meta .tool{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;letter-spacing:.04em;color:var(--ink-2);padding:2px 8px;border:0.5px solid var(--rule);border-radius:6px}
.work-foot{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;color:var(--ink-3)}

/* ---------- Process flow ---------- */
.flow{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:flow}
.flow-step{
  position:relative;padding:26px 22px;border:0.5px solid var(--rule);border-right:none;
  background:var(--glass-2);
}
.flow-step:first-child{border-radius:var(--radius) 0 0 var(--radius)}
.flow-step:last-child{border-right:0.5px solid var(--rule);border-radius:0 var(--radius) var(--radius) 0}
.flow-step::after{
  content:'';position:absolute;right:-1px;top:50%;width:8px;height:8px;border-radius:70% 0 70% 0;
  background:var(--accent);transform:translate(50%,-50%) rotate(8deg);z-index:2;box-shadow:0 0 10px rgba(110,123,240,.6);opacity:.85;
}
.flow-step:last-child::after{display:none}
.flow-no{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:11px;letter-spacing:.18em;color:var(--accent);display:block;margin-bottom:14px}
.flow-title{font-family:'Noto Serif JP',serif;font-weight:400;font-size:16px;letter-spacing:.05em;margin-bottom:10px}
.flow-desc{color:var(--ink-2);font-size:12.5px;line-height:1.9}

/* ---------- Skills ---------- */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.skill-card{border:0.5px solid var(--rule);border-radius:var(--radius);padding:24px;background:var(--glass-2);transition:border-color .3s,transform .3s}
.skill-card:hover{border-color:var(--rule-2);transform:translateY(-3px)}
.skill-cat{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.skill-dot{width:11px;height:11px;border-radius:70% 0 70% 0;transform:rotate(8deg)}
.skill-name{font-family:'Noto Serif JP',serif;font-weight:400;font-size:16px;letter-spacing:.05em}
.skill-tools{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.skill-tools li{font-size:11.5px;color:var(--ink-2);padding:5px 12px;border:0.5px solid var(--rule);border-radius:8px;background:rgba(240,236,228,.02)}

/* ---------- Contact ---------- */
.contact-wrap{display:grid;grid-template-columns:1.4fr .9fr;gap:clamp(20px,3vw,40px);align-items:start}
.contact-label{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;letter-spacing:.2em;color:var(--ink-3);margin-bottom:14px}
.contact-links{display:grid;gap:10px}
.contact-card{
  display:flex;align-items:center;gap:14px;padding:15px 18px;text-decoration:none;
  border:0.5px solid var(--rule);border-radius:12px;background:var(--glass-2);
  transition:border-color .25s,transform .25s,background .25s;
}
.contact-card:hover{border-color:var(--rule-2);transform:translateX(4px);background:rgba(110,123,240,.07)}
.contact-card--alt:hover{background:rgba(78,204,230,.07)}
.contact-ico{width:22px;height:22px;color:var(--ink-2);flex-shrink:0;line-height:0}
.contact-ico svg{width:22px;height:22px}
.contact-card:hover .contact-ico{color:var(--accent)}
.contact-meta{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.contact-name{font-size:14px;letter-spacing:.04em;color:var(--ink)}
.contact-handle{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:11px;color:var(--ink-3)}
.contact-arrow{color:var(--ink-3);transition:transform .25s,color .25s}
.contact-card:hover .contact-arrow{transform:translateX(4px);color:var(--accent)}
.contact-foot-note{margin-top:12px;font-size:12px;color:var(--ink-3);line-height:1.8}

/* ---------- フッター ---------- */
.foot{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:40px var(--pad) 56px}
.foot-line{height:0.5px;background:linear-gradient(90deg,transparent,var(--rule-2) 20%,var(--accent) 50%,var(--rule-2) 80%,transparent);opacity:.55;margin-bottom:28px}
.foot-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px}
.foot-left{display:flex;flex-direction:column;gap:4px}
.foot-brand{font-family:'Noto Serif JP',serif;font-weight:400;letter-spacing:.16em;font-size:15px}
.foot-by{font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10.5px;color:var(--ink-3);letter-spacing:.08em}
.foot-links{display:flex;flex-wrap:wrap;gap:18px}
.foot-links a{font-size:12px;letter-spacing:.08em;color:var(--ink-3);text-decoration:none;transition:color .2s}
.foot-links a:hover{color:var(--accent)}
.foot-copy{margin-top:24px;font-family:'Noto Sans JP',system-ui,sans-serif;font-size:10px;color:var(--ink-3);letter-spacing:.1em}

/* ---------- ライトボックス ---------- */
.lightbox{
  position:fixed;inset:0;z-index:9000;display:grid;place-items:center;
  background:rgba(6,5,4,.88);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:5vw;
  animation:fade .25s ease;
}
.lightbox[hidden]{display:none}
@keyframes fade{from{opacity:0}to{opacity:1}}
.lightbox-figure{max-width:1000px;max-height:88vh;display:flex;flex-direction:column;gap:14px}
.lightbox-figure img{max-height:78vh;width:auto;border-radius:10px;border:0.5px solid var(--rule-2)}
.lightbox-cap{color:var(--ink-2);font-size:13px;text-align:center;letter-spacing:.04em}
.lightbox-close{
  position:absolute;top:20px;right:24px;width:44px;height:44px;border-radius:50%;
  background:var(--glass);border:0.5px solid var(--rule-2);color:var(--ink);font-size:22px;cursor:pointer;
  transition:border-color .2s,transform .2s;
}
.lightbox-close:hover{border-color:var(--accent);transform:rotate(90deg)}

/* ---------- 出現アニメ ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* =====================================================================
   レスポンシブ
   ===================================================================== */
@media (max-width:900px){
  .nav,.nav-social{display:none}
  .topbar{gap:12px}
  .nav-toggle{
    display:flex;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;
    width:42px;height:42px;border:0.5px solid var(--rule-2);border-radius:10px;background:var(--glass-2);cursor:pointer;padding:0 11px;
  }
  .nav-toggle span{display:block;height:1.4px;background:var(--ink);transition:transform .25s,opacity .25s}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

  /* モバイルメニュー（展開時） */
  .topbar.menu-open{flex-wrap:wrap}
  .topbar.menu-open .nav{
    display:flex;flex-direction:column;align-items:flex-start;gap:4px;
    order:3;width:100%;margin-left:0;padding-top:12px;border-top:0.5px solid var(--rule);margin-top:12px;
  }
  .topbar.menu-open .nav .vr{display:none}
  .topbar.menu-open .nav a{font-size:15px;padding:8px 0;width:100%}
  .topbar.menu-open .nav-social{display:flex;order:4;width:100%;gap:20px;padding-top:8px}
  .topbar.menu-open .nav-social svg{width:20px;height:20px}

  .duo{grid-template-columns:1fr;gap:14px}
  .duo-link{transform:rotate(90deg);min-height:30px}
  .flow{grid-template-columns:1fr 1fr}
  .flow-step{border-right:0.5px solid var(--rule)!important;border-radius:0!important}
  .flow-step::after{display:none}
  .contact-wrap{grid-template-columns:1fr}
}
@media (max-width:600px){
  .works-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .bg-glow{display:none}
  /* 桜の花びらは reduced-motion でも常に表示・アニメさせる（ユーザー要望） */
  .petal{animation-duration:var(--pdur,1200ms)!important;animation-iteration-count:1!important}
  /* ローダーも reduced-motion で動かす */
  .loader{transition-duration:.8s!important}
  .loader-bar i{animation-duration:1.15s!important;animation-iteration-count:infinite!important}
}